Thought I would move this into this discussion since it relates to the alpha version:
This is my scenario:
1) create two separate items:
a) check_service[http,<ip>,<port>]
b) check_service[http,<another_ip>,port]
2) create trigger:
({<host>:check_service[http,<ip>,<port>].last(0)}=0)|
({<host>:check_service[http,<another_ip>,port].last(0)}=0
3) Go to events screen and you will see that the value is set to off.
4) Go to the overview for that host and you will see that the box is in gray.
5) View the zabbix_server.log and you will see an error that it could not evaluate the expression.
The events screen makes you believe that everything is ok, the overview screen makes it seem as though it has no information. Again, this is version 1.1alpha7
This is my scenario:
1) create two separate items:
a) check_service[http,<ip>,<port>]
b) check_service[http,<another_ip>,port]
2) create trigger:
({<host>:check_service[http,<ip>,<port>].last(0)}=0)|
({<host>:check_service[http,<another_ip>,port].last(0)}=0
3) Go to events screen and you will see that the value is set to off.
4) Go to the overview for that host and you will see that the box is in gray.
5) View the zabbix_server.log and you will see an error that it could not evaluate the expression.
The events screen makes you believe that everything is ok, the overview screen makes it seem as though it has no information. Again, this is version 1.1alpha7